content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * --------------------------
   * FixedMillisecondTests.java
   * --------------------------
   * (C) Copyright 2002-2008, by Object Refinery Limited.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 29-Jan-2002 : Version 1 (DG);
   * 17-Oct-2002 : Fixed errors reported by Checkstyle (DG);
   * 21-Oct-2003 : Added hashCode test (DG);
   * 28-May-2008 : Added test for immutability (DG);
   *
   */
  
  package org.jfree.data.time;
  
  import org.junit.Test;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutput;
  import java.io.ObjectOutputStream;
  import java.util.Date;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  
  /**
   * Tests for the {@link FixedMillisecond} class.
   */
  public class FixedMillisecondTest  {
  
  
  
  
  
      /**
       * Serialize an instance, restore it, and check for equality.
       */
      @Test
      public void testSerialization() throws IOException, ClassNotFoundException {
  
          FixedMillisecond m1 = new FixedMillisecond();
  
              ByteArrayOutputStream buffer = new ByteArrayOutputStream();
              ObjectOutput out = new ObjectOutputStream(buffer);
              out.writeObject(m1);
              out.close();
  
              ObjectInput in = new ObjectInputStream(
                      new ByteArrayInputStream(buffer.toByteArray()));
          FixedMillisecond m2 = (FixedMillisecond) in.readObject();
              in.close();
  
          assertEquals(m1, m2);
  
      }
  
      /**
       * Two objects that are equal are required to return the same hashCode.
       */
      @Test
      public void testHashcode() {
          FixedMillisecond m1 = new FixedMillisecond(500000L);
          FixedMillisecond m2 = new FixedMillisecond(500000L);
          assertEquals(m1, m2);
          int h1 = m1.hashCode();
          int h2 = m2.hashCode();
          assertEquals(h1, h2);
      }
  
      /**
       * The {@link FixedMillisecond} class is immutable, so should not be
       * {@link Cloneable}.
       */
      @Test
      public void testNotCloneable() {
          FixedMillisecond m = new FixedMillisecond(500000L);
          assertFalse(m instanceof Cloneable);
      }
  
      /**
       * A check for immutability.
       */
      @Test
      public void testImmutability() {
          Date d = new Date(20L);
          FixedMillisecond fm = new FixedMillisecond(d);
          d.setTime(22L);
          assertEquals(20L, fm.getFirstMillisecond());
      }
  }
  